Bottom support, intelligent host and intelligent wearable device

Abstract

The bottom support comprises a support body, a cover plate and a magnetic component, the support body is provided with a first opposite end and a second opposite end which are opposite, the first opposite end is used for being rotationally connected with a host body, the second opposite end is provided with a first surface, the first surface is provided with a containing groove, and the containing groove is used for containing the host body. The cover plate covers the opening of the accommodating groove, the magnetic component is arranged in the accommodating groove, the magnetic component is lower than or flush with the first surface in the first direction, and the magnetic component is used for triggering the Hall switch to be connected or disconnected; wherein the first direction is opposite to the depth direction of the accommodating groove. According to the bottom support, the intelligent host and the intelligent wearable equipment provided by the embodiment of the utility model, the structural strength of the cover plate can be improved while the distance between the Hall switch and the magnet meets the magnetic flux requirement of the Hall switch, so that the service life of the cover plate is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent wearable devices, and in particular to a bottom bracket, an intelligent host, and an intelligent wearable device. Background Art

[0002] In order to facilitate the quick start of the camera on the host after the host is rotated relative to the bottom bracket without manual start, thereby simplifying the user's operation, a Hall switch is usually set on the host, and a magnet for triggering the Hall switch to be turned on or off is set on the bottom bracket, so that the Hall switch controls the start or shut down of the camera.

[0003] In the related art, in order to prevent the magnet from being exposed and rusted, which would affect the use of the magnet, a decorative piece is usually used to cover the magnet, and a groove is opened on the decorative piece to accommodate the magnet. However, the groove design will affect the structural strength of the decorative piece, thereby affecting the service life of the decorative piece. Utility Model Content

[0004] The embodiment of the utility model discloses a bottom bracket, a smart host and a smart wearable device, which can realize a thinning design of the magnetic component while ensuring that the distance between the Hall switch and the magnet meets the magnetic flux requirement of the Hall switch, and improve the structural strength of the cover plate to increase the service life of the cover plate.

[0005] In order to achieve the above-mentioned purpose, in a first aspect, the utility model discloses a bottom bracket, which is applied to a smart host, wherein the smart host comprises a host body, wherein a Hall switch is arranged in the host body, and the bottom bracket comprises:

[0006] A bracket body, the bracket body having a first opposite end and a second opposite end, the first opposite end being used for rotationally connecting with the host body, the second opposite end having a first surface, and the first surface being provided with a receiving groove;

[0007] a cover plate, the cover plate being sealed at the notch of the receiving groove; and

[0008] A magnetic component, the magnetic component is built into the receiving groove, and along the first direction, the magnetic component is lower than or flush with the first surface, and the magnetic component is used to trigger the Hall switch to be connected or disconnected;

[0009] Wherein, the first direction is opposite to the depth direction of the receiving groove.

[0010] As an optional implementation, in an embodiment of the first aspect of the utility model, along the depth direction of the receiving groove, the thickness of the magnetic component is 0.5mm-0.9mm.

[0011] As an optional implementation, in an embodiment of the first aspect of the utility model, the magnetic component and the cover plate are connected by an adhesive layer, and / or the magnetic component and the bottom surface of the receiving groove are connected by an adhesive layer.

[0012] As an optional implementation manner, in an embodiment of the first aspect of the utility model, the magnetic component and the cover plate are connected by an adhesive layer.

[0013] As an optional implementation manner, in an embodiment of the first aspect of the utility model, the cover plate is made of an elastic material or a flexible material.

[0014] As an optional implementation, in an embodiment of the first aspect of the utility model, a deformation protrusion is convexly provided on the surface of the cover plate facing away from the bracket body, and the deformation protrusion is used to contact the main body when the main body is rotated relative to the bracket body to be overlapped on the bracket body.

[0015] As an optional implementation, in an embodiment of the first aspect of the utility model, there are multiple deformation protrusions, and the multiple deformation protrusions are arranged at intervals along the length direction of the cover plate.

[0016] In the second aspect, the utility model discloses an intelligent host, which includes a host body and a bottom bracket as described in the first aspect above, wherein the host body can be rotatably connected to the first opposite end of the bracket body, and a Hall switch and a camera are provided in the host body, and the magnetic component is used to trigger the Hall switch to turn on or off the connection so that the Hall switch controls the start or shut down of the camera.

[0017] As an optional implementation, in an embodiment of the second aspect of the utility model, when the host body is stacked on the bracket body, the distance between the Hall switch and the magnetic component along the depth direction of the receiving groove is 1.8mm-3.1mm.

[0018] In a third aspect, the utility model discloses a smart wearable device, which includes a wearable component and the smart host as described in the second aspect above, and the wearable component is connected to the first opposite end and the second opposite end of the bracket body.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] The bottom bracket, smart host and smart wearable device provided by the embodiments of the utility model embed the magnet in the receiving groove of the bracket body, and the magnetic component does not protrude from the receiving groove and is completely received in the receiving groove. In this way, there is no need to open a groove on the cover plate to receive the magnetic component. On the one hand, it can avoid affecting the structural strength of the cover plate, which is beneficial to the service life of the cover plate; on the other hand, there is no need to set an anti-fouling structure on the upper surface of the cover plate to ensure that the groove on the cover plate can be aligned with the magnetic component, which is beneficial to simplifying the production process and assembly process.

[0021] At the same time, since the magnetic component does not protrude from the receiving groove, the thickness of the magnetic component in the depth direction of the receiving groove is reduced while the depth of the receiving groove remains unchanged, thereby reducing the weight of the magnetic component. In addition, the cover plate does not need to have a groove so that the cover plate has a stronger structural strength. The magnetic component can be glued to the cover plate, eliminating the glue layer between the magnetic component and the bottom surface of the receiving groove, reducing a layer of glue layer used to fix the magnetic component, thereby effectively simplifying the assembly process and improving assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a schematic diagram of the structure of the intelligent wearable device disclosed in the embodiment of the utility model;

[0024] Figure 2 It is a structural schematic diagram of the intelligent host disclosed in the embodiment of the utility model;

[0025] Figure 3 It is a structural schematic diagram of the intelligent host disclosed in the embodiment of the utility model when the host body is flipped to a certain angle relative to the bottom bracket;

[0026] Figure 4 The intelligent host disclosed in the embodiment of the utility model is Figure 2 The cross-sectional view in the AA direction;

[0027] Figure 5 It is a structural schematic diagram of the bottom bracket disclosed in the embodiment of the utility model;

[0028] Figure 6 It is a schematic diagram of the exploded structure of the bottom bracket disclosed in the embodiment of the utility model;

[0029] Figure 7is a top view of the bottom bracket disclosed in the embodiment of the utility model;

[0030] Figure 8 The bottom bracket disclosed in the embodiment of the utility model is along Figure 7 Cross-sectional view along the BB direction.

[0031] Description of main reference numerals

[0032] 1000-smart wearable devices;

[0033] 100-intelligent host; 10-bottom bracket; 11-bracket body; 11a-first opposite end; 11b-second opposite end; 111-first surface; 112-receiving groove; 12-magnetic component; 13-cover plate; 131-deformation protrusion; 14-glue layer; 20-host body; 21-camera; 22-Hall switch;

[0034] 200- Wearable parts. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0037] It is understood that the terms "first", "second", etc. used in this application can be used in this article to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish a first element from another element. For example, without departing from the scope of this application, the first opposite end can be referred to as the second opposite end, and similarly, the second opposite end can be referred to as the first opposite end. Both the first opposite end and the second opposite end are opposite ends, but they are not the same opposite end.

[0038] It can be understood that the “connection” in the following embodiments should be understood as “electrical connection”, “communication connection”, etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.

[0039] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" and the like specify the presence of stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. At the same time, the term "and / or" used in this specification includes any and all combinations of the relevant listed items.

[0040] In order to facilitate the quick start of the camera on the host body after the host body is rotated relative to the bottom bracket without manual start-up, so as to simplify the user's operation, a Hall switch is usually set on the host body, and a magnetic component for triggering the Hall switch to turn on or off the connection is set on the bracket body, so that the Hall switch controls the start or shut down of the camera.

[0041] In the related art, in order to prevent the magnetic components from being exposed and rusted, which would affect the use of the magnetic components, a cover plate is usually used to cover the magnet. At the same time, in order to make the distance between the Hall switch and the magnetic component meet the magnetic flux requirements of the Hall switch, a groove is usually opened on the cover plate to accommodate the magnet, so as to control the distance between the magnetic component and the Hall switch within a suitable range. However, the slotted design will affect the structural strength of the cover plate, thereby affecting the service life of the cover plate.

[0042] In view of this, an embodiment of the present application provides a bottom bracket that can improve the structural strength of the cover plate while meeting the magnetic flux requirements of the Hall switch.

[0043] The technical solution of the present application will be further described in detail below with reference to the accompanying drawings.

[0044] See also Figure 1 The embodiment of the utility model discloses a smart wearable device, which includes a smart host 100 and a wearable component 200. The smart host 100 is connected to the wearable component 200, and the wearable component 200 is used to be worn on the user's wrist, neck or leg, so that the smart host 100 can be worn on the user's wrist, neck or leg.

[0045] It should be noted that in the implementation of the present application, the smart wearable device 1000 is only described as a smart watch, and the smart wearable device 1000 of the present application is not limited to being a smart watch. In other implementations of the present application, the smart wearable device 1000 can also be a smart bracelet, a neck massager, a knee massager, or other electronic products that can be worn on the user's wrist, and the present application does not make specific limitations on this.

[0046] When the smart wearable device 1000 in the present application is a smart watch or a smart bracelet, the wearable component 200 is a watch strap, which may be two watch straps, and the two watch straps are respectively connected to the two ends of the smart host 100.

[0047] See also Figure 2 and Figure 3 As shown, the smart host 100 provided by the embodiment of the utility model includes a bottom bracket 10 and a host body 20. A camera 21 is provided in the host body 20, and the host body 20 can be rotatably connected to one end of the bottom bracket 10, so that the host body 20 can rotate relative to the bottom bracket 10 to change the shooting angle of the camera 21 to meet the user's multi-angle shooting needs.

[0048] In the present application, when the smart wearable device 1000 is a smart watch or a smart bracelet, the host body 20 is mainly used as the host of the smart host 100, which can realize functions such as calling, sending and receiving information, taking pictures, video calling, scanning QR codes, mobile payment, viewing environmental information, and viewing body information. Therefore, in this embodiment, the host body 20 may include a motherboard component, a battery, a speaker, a microphone, a card holder component, a communication module, and sensors for realizing various functions, wherein the sensor may be a gravity sensor, an acceleration sensor, a distance sensor, a heart rate sensor, an air pressure sensor, an ultraviolet detector, etc. And the host body 20 may also include components for identity recognition, such as a fingerprint recognition module, a facial recognition module, etc. Two straps are connected to the two ends of the host body 20 respectively.

[0049] Combination Figure 3 , Figure 4 and Figure 5 As shown, in the present application, in order to facilitate the user to use the camera 21 for shooting, the camera 21 can be quickly and automatically started, without the user manually turning on the camera 21. In some embodiments, a Hall switch 22 is also provided in the host body 20, and the bottom bracket 10 includes a bracket body 11 and a magnetic component 12. The bracket body 11 has a first opposite end 11a and a second opposite end 11b opposite to each other. The first opposite end 11a is used to rotate and connect with the host body 20. The magnetic component 12 is arranged at the second opposite end 11b. When the host body 20 is rotated to overlap the bottom bracket 10, the magnetic component 12 is arranged corresponding to the Hall switch 22. The magnetic component 12 is used to trigger the Hall switch 22 to turn on or off the connection, so that the Hall switch 22 controls the start or shut down of the camera 21. Among them, the wearable component 200 is connected to the first opposite end 11a and the second opposite end 11b of the bracket body 11. Specifically, one of the straps is connected to the first opposite end 11a of the bracket body 11, and the other strap is connected to the second opposite end 11b of the bracket body 11.

[0050] Specifically, when the host body 20 is stacked on the bottom bracket 10 (initial state), the Hall switch 22 is set corresponding to the magnetic component 12, that is, the projection of the Hall switch 22 on the bottom bracket 10 and the projection of the magnetic component 12 on the bottom bracket 10 at least partially overlap, the Hall switch 22 is in the off state, and the camera 21 is in the off state; when the host body 20 is rotated to a certain angle relative to the bottom bracket 10, the Hall switch 22 and the camera 21 can rotate together with the rotation of the host body 20, so that the position of the Hall switch 22 on the host body 20 and the magnetic component 12 on the bottom bracket 10 are staggered, and the magnetic component 12 can quickly make the Hall switch 22 output a high level or a low level to trigger the Hall switch 22 to turn on and start working, so as to start the camera 21. In this way, the user can start or close the camera 21 more quickly and easily, without the user manually starting by clicking the icon or button of the camera 21, simplifying the user's operation.

[0051] Preferably, the magnetic component 12 can be a magnet.

[0052] The overall working process of the Hall switch 22 is briefly described below:

[0053] When the host body 20 is stacked on the bottom bracket 10 (initial state), the camera 21 is usually not in use. When the user rotates the host body 20 to change the shooting direction of the camera 21, as the host body 20 rotates, the Hall switch 22 provided in the host body 20 and the magnetic component 12 provided on the bottom bracket 10 will gradually change from the initial corresponding state (disconnected state) to the staggered state (on state). At this time, the magnetic component 12 can quickly make the Hall switch 22 output a high level or a low level to trigger the Hall switch 22 to turn on and start working, thereby realizing the startup of the camera 21 and being in the shooting interface.

[0054] It can be understood that when the host body 20 is stacked on the bottom bracket 10, the Hall switch 22 is in the disconnected state, and the activation of the camera 21 can be controlled by the host body 20 (for example, it can be activated by the camera icon or button on the host body 20).

[0055] See also Figure 5 and Figure 6The bottom bracket 10 provided by the embodiment of the utility model further includes a cover plate 13. The second opposite end 11b of the bracket body 11 has a first surface 111. The first surface 111 is provided with a receiving groove 112. The cover plate 13 is sealed at the notch of the receiving groove 112. The magnetic component 12 is built into the receiving groove 112, and along the first direction, the magnetic component 12 is lower than or flush with the first surface 111. The first direction is opposite to the depth direction of the receiving groove 112. For example, the first direction can be Figure 5 and Figure 6 In the upward direction, the depth direction of the receiving groove 112 can be Figure 5 and Figure 6 in the downward direction.

[0056] By embedding the magnet in the receiving groove 112 of the bracket body 11 and making the magnetic component 12 lower than or flush with the first surface 111, even if the magnetic component 12 does not protrude from the receiving groove 112, it is completely received in the receiving groove 112. In this way, there is no need to open a groove on the cover plate 13 to receive the magnetic component 12. On the one hand, it can avoid affecting the structural strength of the cover plate 13, which is beneficial to the service life of the cover plate 13; on the other hand, there is no need to set an anti-fouling structure on the upper surface of the cover plate 13 to ensure that the groove on the cover plate 13 can be aligned with the magnetic component 12, which is beneficial to simplifying the production process and the assembly process.

[0057] In some embodiments, the magnetic component 12 and the cover plate 13 are connected by an adhesive layer 14, and / or the magnetic component 12 and the bottom surface of the receiving groove 112 are connected by an adhesive layer 14, that is, only the magnetic component 12 and the cover plate 13 may be connected by an adhesive layer 14, or only the magnetic component 12 and the bottom surface of the receiving groove 112 may be connected by an adhesive layer 14, or the magnetic component 12 and the cover plate 13 are connected by an adhesive layer 14, and at the same time, the magnetic component 12 and the bottom surface of the receiving groove 112 are also connected by an adhesive layer 14. The magnetic component 12 is fixed on the cover plate 13 or the bottom surface of the receiving groove 112 by bonding, and the installation method is relatively simple. Compared with traditional mechanical fastening (riveting, welding, screwing, etc.), the bonding strength is higher and the cost is lower. Moreover, the overall mass of the bottom bracket 10 after installation is lighter, which is conducive to the lightweight design of the bottom bracket 10, thereby being conducive to the lightweight design of the smart wearable device 1000.

[0058] In order to ensure that the magnetic component 12 does not protrude from the receiving groove 112 and is completely received in the receiving groove 112, in some optional embodiments, the depth of the receiving groove 112 can be increased while the thickness of the magnetic component 12 in the depth direction of the receiving groove 112 remains unchanged, and the thickness of the bracket body 11 in the depth direction of the receiving groove 112 is also increased. In other optional embodiments, the thickness of the magnetic component 12 in the depth direction of the receiving groove 112 can be reduced while the depth of the receiving groove 112 remains unchanged.

[0059] Preferably, the thickness of the magnetic component 12 in the depth direction of the receiving groove 112 is reduced while the depth of the receiving groove 112 remains unchanged. This can reduce the weight of the magnetic component 12, and in conjunction with the design that the cover plate 13 does not need to be provided with a groove so that the cover plate 13 has a strong structural strength, there is no need to bond the bottom surface of the magnetic component 12 and the bottom surface of the receiving groove 112 through the adhesive layer 14 to avoid the entire weight of the magnetic component 12 being concentrated on the cover plate 13, so that the magnetic component 12 can be glued to the cover plate 13 only through the adhesive layer 14, and the adhesive layer 14 between the magnetic component 12 and the bottom surface of the receiving groove 112 is eliminated, reducing a layer of adhesive layer 14 used to fix the magnetic component 12, thereby effectively simplifying the assembly process and thus improving assembly efficiency.

[0060] It should be noted that the adhesive layer 14 between the magnetic component 12 and the cover plate 13 can not only fix the magnetic component 12 on the cover plate 13, but also seal the magnetic component 12 to prevent external liquid from entering the receiving groove 112 from the gap between the cover plate 13 and the bracket body 11 and corroding the magnetic component 12, thereby preventing the magnetic component 12 from rusting and ensuring that the magnetic component 12 can be used normally.

[0061] For example, Figure 7 and Figure 8As shown, along the depth direction of the receiving groove 112, the thickness d of the magnetic component 12 is 0.5mm-0.9mm, for example, d=0.5mm, 0.55mm, 0.6mm, 0.65mm, 0.7mm, 0.75mm, 0.8mm, 0.85mm or 0.9mm, etc. When the thickness d of the magnetic component 12 is within the above range and its thickness is relatively small, the weight of the magnetic component 12 can be reduced, and the design that the cover plate 13 does not need to be provided with a groove so that the cover plate 13 has a strong structural strength is not required, and the bottom surface of the magnetic component 12 and the bottom surface of the receiving groove 112 do not need to be bonded by the adhesive layer 14 to avoid the whole weight of the magnetic component 12 being concentrated on the cover plate 13, so that the magnetic component 12 can be bonded to the cover plate 13 only by the adhesive layer 14, and the adhesive layer 14 between the magnetic component 12 and the bottom surface of the receiving groove 112 is eliminated, and a layer of adhesive layer 14 used to fix the magnetic component 12 is reduced, so that the assembly process can be effectively simplified, and the assembly efficiency can be improved.

[0062] The inventors have found through testing that the magnetic flux of the magnetic component 12 will decrease as the thickness d of the magnetic component 12 decreases. It is also found that by reducing the distance between the Hall switch 22 and the magnetic component 12, the magnetic flux requirement of the Hall switch 22 can be met after the magnetic component 12 is thinned. In this regard, in the present application, Figure 4 As shown, it is limited that when the host body 20 is stacked on the bracket body 11, the spacing L between the Hall switch 22 and the magnetic component 12 along the depth direction of the receiving groove 112 is 1.8mm-3.1mm, for example, L = 1.8mm, 2.0mm, 2.3mm, 2.5mm, 2.7mm, 2.9mm, 3.0mm or 3.1mm, so as to avoid the spacing between the Hall switch 22 and the magnetic component 12 being too large, thereby ensuring that the magnetic flux requirement of the Hall switch 22 can be met, so that the Hall switch 22 can accurately control the startup and shutdown of the camera 21.

[0063] Optionally, in order to reduce the distance between the Hall switch 22 and the magnetic component 12, the thickness of the housing of the host body 20 can be reduced, or the position of the Hall switch 22 in the housing can be adjusted. It can be understood that other methods can also be used as long as the distance between the Hall switch 22 and the magnetic component 12 can be reduced, which is not specifically limited in this application.

[0064] In some embodiments, the cover plate 13 is made of an elastic material or a flexible material, so that the cover plate 13 can be used as a buffer for the host body 20, that is, when the host body 20 rotates relative to the bracket body 11 to overlap the bracket body 11, the cover plate 13 abuts against the host body 20 to prevent the host body 20 from directly colliding with the second opposite end 11b of the bracket body 11, thereby preventing the host body 20 from being worn, playing a role of buffering and protection, and thus extending the service life of the smart host 100. Moreover, considering that most of the smart hosts 100 in the related art have a dual-camera function, that is, the smart host 100 is usually provided with two cameras 21, which are usually arranged at the end of the host body 20 close to the second opposite end 11b and are respectively located on the front and back sides of the host body 20, by using an elastic material or a flexible material for the cover plate 13 arranged on the second opposite end 11b, it is also possible to avoid the camera 21, especially the rear camera (the camera 21 located on the back side of the host body 20) from directly colliding with the bracket body 11 to a certain extent, thereby protecting the camera 21.

[0065] In some embodiments, in combination Figures 6 to 8 As shown, the surface of the cover plate 13 facing away from the bracket body 11 is provided with a deformable protrusion 131, and the deformable protrusion 131 is used to contact the host body 20 when the host body 20 rotates relative to the bracket body 11 to overlap the bracket body 11. Generally, the size of the deformable protrusion 131 is smaller than that of the cover plate 13, so the deformable protrusion 131 is easier to deform than the cover plate 13, and the buffering effect is better, so that the host body 20 and the camera 21 can be better protected.

[0066] Optionally, there are multiple deformable protrusions 131 , for example, two, three, four, five, six, etc., and the multiple deformable protrusions 131 are arranged at intervals along the length direction of the cover plate 13 . Multiple deformable protrusions 131 have better buffering effect than one deformable protrusion 131; at the same time, since the rear camera is usually located in the middle position of the end of the host body 20, in order to better protect the rear camera, and multiple deformable protrusions 131 can stably support the end of the host body 20, the deformable protrusions are an even number, such as two, four, six, etc., and the even number of deformable protrusions 131 are symmetrically arranged about the center of the cover plate 13. When the host body 20 is rotated to be stacked on the bracket body 11, the rear camera corresponds to the gap between two adjacent deformable protrusions 131, that is, the projection of the rear camera on the bracket body 11 is located at the gap between two adjacent deformable protrusions 131. This can avoid contact and collision between the rear camera and the deformable protrusion 131, and avoid contact and collision between the rear camera and the cover plate 13, thereby better protecting the rear camera.

[0067] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0068] In addition, the above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the content of this specification should not be understood as limiting the present application, and the protection scope of the present application shall be subject to the attached claims.

Claims

1. A bottom bracket, applied to a smart host, characterized in that: The intelligent host comprises a host body, a Hall switch is arranged in the host body, and the bottom bracket comprises: A bracket body, the bracket body having a first opposite end and a second opposite end, the first opposite end being used for rotationally connecting with the host body, the second opposite end having a first surface, and the first surface being provided with a receiving groove; a cover plate, the cover plate being sealed at the notch of the receiving groove; and A magnetic component, the magnetic component is built into the receiving groove, and along the first direction, the magnetic component is lower than or flush with the first surface, and the magnetic component is used to trigger the Hall switch to be connected or disconnected; Wherein, the first direction is opposite to the depth direction of the receiving groove.

2. The bottom bracket according to claim 1, characterized in that: Along the depth direction of the receiving groove, the thickness of the magnetic component is 0.5mm-0.9mm.

3. The bottom bracket according to claim 1, characterized in that: The magnetic component and the cover plate are connected via an adhesive layer, and / or the magnetic component and the bottom surface of the receiving groove are connected via an adhesive layer.

4. The bottom bracket according to claim 1, characterized in that: The magnetic component and the cover plate are connected via an adhesive layer.

5. The bottom bracket according to any one of claims 1 to 4, characterized in that: The cover plate is made of elastic material or flexible material.

6. The bottom bracket according to any one of claims 1 to 4, characterized in that: A deformation protrusion is convexly arranged on the surface of the cover plate facing away from the bracket body, and the deformation protrusion is used to contact the host body when the host body is rotated relative to the bracket body to be overlapped on the bracket body.

7. The bottom bracket according to claim 6, characterized in that There are a plurality of the deformable protrusions, and the plurality of the deformable protrusions are arranged at intervals along the length direction of the cover plate.

8. A smart host, characterized in that: The smart host includes a host body and a bottom bracket as described in any one of claims 1-7, the host body can be rotatably connected to the first opposite end of the bracket body, a Hall switch and a camera are provided in the host body, and the magnetic component is used to trigger the Hall switch to turn on or off the connection so that the Hall switch controls the start or shut down of the camera.

9. The intelligent host according to claim 8, characterized in that: When the host body is stacked on the bracket body, along the depth direction of the receiving groove, the distance between the Hall switch and the magnetic component is 1.8 mm-3.1 mm.

10. A smart wearable device, characterized in that: The smart wearable device includes a wearable component and a smart host as described in claim 8 or 9, and the wearable component is connected to the first opposite end and the second opposite end of the bracket body.

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